Philco 40-155

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Philco 40-155

rogerh
Junior Member

Posts: 9
Threads: 4
Joined: Aug 2023
City: Kenmore State, Province, Country: Washington

01-13-2025, 06:05 PM

Thank you for the thorough answer and explaination!

The radio sticker on the inside of the cabinet states 7J7, seems like it's likely that someone put a different chassis in the cabinet. I was wrong saying that the radio had a 6K8 installed, it has a 6K7 installed. Would performance be better if I installed a 7j7, or would the difference be slight?

I did thoroughly go through the amplifier section replacing the resistors and capacitors since the values of the resistors had drifted more than 20%. To compensate for a pm speaker I installed a 1k ohm resister and bumped the second capacitor to 47K'. Also added bluetooth but I injected the signal to the volume control and ground. Would be interested in how you would connect.

So Philco didn't release a schematic showing the 6k7 installed instead of the 7j7?

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Messages In This Thread

Philco 40-155 - by rogerh - 01-12-2025, 07:45 PM

RE: Philco 40-155 - by GarySP - 01-12-2025, 08:01 PM

RE: Philco 40-155 - by rogerh - 01-12-2025, 08:09 PM

RE: Philco 40-155 - by GarySP - 01-12-2025, 10:34 PM

RE: Philco 40-155 - by MrFixr55 - 01-12-2025, 10:54 PM

RE: Philco 40-155 - by rogerh - 01-13-2025, 06:05 PM

RE: Philco 40-155 - by MrFixr55 - 01-14-2025, 12:13 PM

RE: Philco 40-155 - by rogerh - 01-14-2025, 06:14 PM

RE: Philco 40-155 - by MrFixr55 - 01-15-2025, 01:35 AM

RE: Philco 40-155 - by MrFixr55 - 01-15-2025, 02:28 AM

RE: Philco 40-155 - by rogerh - 01-15-2025, 04:04 PM

RE: Philco 40-155 - by morzh - 01-15-2025, 04:23 PM

RE: Philco 40-155 - by MrFixr55 - 01-15-2025, 04:55 PM

RE: Philco 40-155 - by MrFixr55 - 01-16-2025, 12:21 PM

RE: Philco 40-155 - by MrFixr55 - 01-16-2025, 12:33 PM

RE: Philco 40-155 - by rogerh - 01-30-2025, 06:57 PM

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